List of World Extreme Cagefighting champions

This is a list of World Extreme Cagefighting (WEC) champions at each weight class. In December 2006 World Extreme Cagefighting was bought by Zuffa, LLC, the parent company of the UFC, to concentrate on the four smaller weight classes under the Unified Rules of Mixed Martial Arts.

Source: Wikipedia — List of World Extreme Cagefighting champions (CC BY-SA 4.0)